Is Material Design, backed by Google, going to have the same impact on the world of web design in 2015? Will it bring a new breath in design that we need?
Probably not.
It doesn’t appear to me to add enough new values in the context of the UI design.

Hopefully, minimal design will continue to be a trend with tools like negative space and low content density. Resource savvy interaction animations (with sound?) is where most web designers are focusing, trying to acquire new skills and learn new tools.